CVE-2026-3000
IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary DLL files from a remote source and execute them.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 9.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.55%
- Percentil entre todas las CVEs puntuadas: 44
- Fecha de la puntuación: 3/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto secundario
T1059Command and Scripting Interpreterexecution85 %
AV:N/PR:N/UI:N con CWE-494 (descarga insegura) permite RCE remoto sin autenticación. La descarga forzada de DLLs y ejecución es suministro comprometido (T1195.002) que resulta en ejecución de código arbitrario (T1059).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-494
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-3000",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-3000",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-03-02T14:07:43.408924Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "twcert@cert.org.tw",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "twcert@cert.org.tw",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 9.3,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "twcert@cert.org.tw",
"affectedData": [
{
"vendor": "Changing",
"product": "IDExpert Windows Logon Agent",
"versions": [
{
"status": "affected",
"version": "2.7.3.230719",
"versionType": "custom",
"lessThanOrEqual": "2.8.4.250925"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-03-02T07:16:23.013",
"references": [
{
"url": "https://www.changingtec.com/news_detail.jsp?item_id=348",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "twcert@cert.org.tw"
},
{
"url": "https://www.twcert.org.tw/en/cp-139-10741-daed4-2.html",
"tags": [
"Third Party Advisory"
],
"source": "twcert@cert.org.tw"
},
{
"url": "https://www.twcert.org.tw/tw/cp-132-10740-b2eb2-1.html",
"tags": [
"Third Party Advisory"
],
"source": "twcert@cert.org.tw"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "twcert@cert.org.tw",
"description": [
{
"lang": "en",
"value": "CWE-494"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated remote attackers to force the system to download arbitrary DLL files from a remote source and execute them."
},
{
"lang": "es",
"value": "IDExpert Windows Logon Agent desarrollado por Changing tiene una vulnerabilidad de ejecución remota de código, que permite a atacantes remotos no autenticados forzar al sistema a descargar archivos DLL arbitrarios de una fuente remota y ejecutarlos."
}
],
"lastModified": "2026-06-17T10:42:51.590",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:changingtec:idexpert:*:*:*:*:*:windows:*:*",
"vulnerable": true,
"matchCriteriaId": "4B08FDE8-0E08-48B6-875E-C4FEA41454A1",
"versionEndIncluding": "2.8.4.250925",
"versionStartIncluding": "2.7.3.230719"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "twcert@cert.org.tw"
}